Last updated: August 21, 2025
Experience the enchanting May weather in Skiathos, Greece, where the average temperature hovers around 18°C (65°F), with maximums reaching a delightful 25°C (77°F). Visitors can enjoy pleasant days and mild evenings, with minimum temperatures dipping to a comfortable 13°C (56°F). Although May sees some rainfall, totaling 31 mm (1.2 in) over just 4 days, the atmospheric humidity levels are around 71%, contributing to the island's lush scenery and vibrant blooms. This combination creates the perfect backdrop for exploring the stunning beaches and breathtaking landscapes that Skiathos is renowned for.
As spring transitions into summer, Skiathos in May experiences a delightful uptick in temperatures, making it an inviting destination for travelers. The month begins with a pleasant minimum temperature of 13°C (56°F), climbing to a reassuring average of 18°C (65°F), and reaching a cheerful maximum of 25°C (77°F). This noticeable warmth from the previous months, where daily highs struggle to break the 21°C (69°F) barrier in April, signals the start of outdoor adventures and sun-soaked beach days. With increasingly balmy conditions, May serves as a perfect prelude to summer's peak, seamlessly blending mild pleasures with a hint of the sun-drenched joys that await in June and beyond.
In May, a delightful shift occurs in Skiathos, Greece, as the spring season reaches its peak and sunny days become more prevalent. With only 31 mm (1.2 in) of precipitation, May marks a significant decrease from the earlier months, illustrating the region's transition from the wetter winter to drier summer conditions. This drop in precipitation is accompanied by just 4 rainy days, allowing residents and visitors to bask in the burgeoning warmth and vibrant landscapes without frequent interruptions. As the island prepares for the bustling summer season, May offers the perfect balance of pleasant weather, making it an ideal time for outdoor adventures.
In May, Skiathos experiences a refreshing humidity level of 71%, marking a slight rise from the lower levels seen in April. This moderate humidity is typical as the island transitions from the cooler spring months to the warmer summer season. The trend shows a gradual decrease in humidity from 82% in January to 61% in June, highlighting a shift towards a drier atmosphere as summer approaches. Visitors in May can enjoy pleasant weather, striking a balance between refreshing breezes and the burgeoning warmth of the Mediterranean sun, making it an ideal time for outdoor adventures before the peak tourist season hits.
As spring transitions into summer, Skiathos, Greece, experiences a significant surge in the UV Index, reaching a striking 9 in May. This places it in the very high exposure category, similar to the subsequent months of June through August. With a burn time of just 15 minutes, the need for sun protection becomes crucial as outdoor enthusiasts flock to this stunning island. Notably, the UV Index increases from 4 in February to 8 in April, before peaking in May, illustrating a marked trend towards higher exposure as the season progresses. Staying informed about the UV Index is essential for enjoying the sun safely, and you can find more detailed information here: Skiathos UV Index.
UV Risk Categories
As spring gracefully transitions into summer, May shines brightly in Skiathos, Greece, boasting an impressive 402 hours of sunshine. This delightful month marks a peak in sunlight, reflecting a steady upward trend since January. With each passing month, sunshine hours have consistently increased, moving from a modest 187 hours in January to nearly half a month of bliss in May. As the days lengthen and warm, locals and visitors alike revel in the vibrant outdoor activities and stunning landscapes that this beautiful island has to offer, making it an ideal time to soak in the sun, breathe in the fragrant blooms, and embrace the burgeoning summer spirit.
As spring unfolds into May, the likelihood of sunny weather dramatically increases in Skiathos, Greece, reaching an impressive 67%. This trend of rising sunshine continues from the beginning of the year when January's chances were a mere 37%, gradually climbing through the months. By the time June arrives, the skies clear even further, boasting a 71% chance of sun. This upward trajectory highlights May as a delightful transition month, setting the stage for the peak summer season ahead, where the chances of sunshine soar to a remarkable 90% in July and August. With the sun's growing presence, May is an ideal time to soak in the vibrant beauty of this charming island before the summer crowds arrive.
In Skiathos, Greece, May brings a delightful increase in daylight, with the sun shining for an impressive 14 hours each day. This marks a significant leap from the 13 hours of daylight in April, setting the stage for longer, sun-soaked adventures. As spring transitions to summer, the daylight duration peaks in the following months of June and July, maintaining that vibrant 14-hour span. This trend not only offers an abundance of time for exploration and leisure but also emphasizes the allure of Skiathos as a favored destination for those seeking to bask in the sun. As summer wanes in August, daylight begins to gradually decline, yet the lingering warmth of the season continues to enchant both locals and visitors alike.
In May, Skiathos experiences a gentle decline in wind speed, with an average of 4.1 m/s (9 mph), marking a transition to calmer, warmer days. This noticeable decrease from the breezier early months, such as January's brisk 7.0 m/s, indicates the island's springtime charm, where the soft winds complement the vibrant blossoming of nature. Following this trend, the winds continue to ease into summer, reaching their calmest point in June at 3.1 m/s (7 mph). This gradual shift creates a perfect atmosphere for leisurely beach days and outdoor adventures, allowing visitors to bask in the serene beauty of Skiathos while enjoying the mild Mediterranean breeze.
Weather in Skiathos varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Skiathos, focusing on differences in temperature, rainfall, humidity, and UV levels.
May presents a much milder and more pleasant climate compared to January. With average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 25°C (77°F), May offers comfortable weather for outdoor activities. Humidity levels are relatively moderate at 71%, and precipitation is minimal, averaging just 31 mm (1.2 in) over four days. In contrast, January is considerably colder, with temperatures averaging between 1°C (33°F) and 18°C (64°F). This month experiences significantly more rain, with 117 mm (4.6 in) of precipitation spread over 12 days, and higher humidity levels at 82%. For more detailed information on January weather, you can visit Skiathos weather in January.
In comparing the weather of May and February, it is evident that May offers warmer temperatures, with a minimum of 13°C (56°F) and a comfortable average of 18°C (65°F), compared to February's cooler conditions with a minimum of just 4°C (39°F) and an average of 12°C (54°F). Additionally, May experiences less rainfall, averaging only 31 mm (1.2 in) over 4 days, whereas February is much wetter, receiving 95 mm (3.7 in) across 10 days. Humidity is slightly lower in May at 71%, compared to February's 78%, making May a generally more pleasant month for outdoor activities. For more details on February weather, you can explore Skiathos weather in February.
When comparing the weather in May and March, May generally presents a milder and more pleasant climate. In May, temperatures range from a minimum of 13°C (56°F) to a maximum of 25°C (77°F), with an average of 18°C (65°F). In contrast, March is cooler, with temperatures ranging from 3°C (37°F) to 19°C (66°F) and an average of just 12°C (55°F). Additionally, March experiences significantly more precipitation, averaging 82 mm (3.2 in) across 9 days, compared to May's 31 mm (1.2 in) over 4 days. Humidity levels are slightly higher in March at 76%, while May sees a comfortable 71%. For more details, check out Skiathos weather in March.
In comparing the weather between April and May, it is clear that May tends to be warmer and drier. April's temperatures range from a minimum of 7°C (46°F) to a maximum of 21°C (69°F), with an average temperature of 14°C (58°F) and significant rainfall of 62 mm (2.4 in) over 6 days. In contrast, May sees a warmer minimum temperature of 13°C (56°F) and a maximum reaching 25°C (77°F), along with a reduced precipitation of just 31 mm (1.2 in) spread over 4 days. Both months have similar humidity levels, with April at 70% and May slightly higher at 71%. For more details about April weather, you can check Skiathos weather in April.
In comparing the weather between May and June, it is clear that June experiences warmer temperatures overall. May has a minimum temperature of 13°C (56°F) and an average of 18°C (65°F), reaching a maximum of 25°C (77°F), while June begins at a higher minimum of 15°C (60°F) and boasts an average of 23°C (73°F), peaking at 29°C (85°F). Additionally, precipitation in June is lower, with only 22 mm (0.9 in) over 2 days compared to May's 31 mm (1.2 in) over 4 days. Humidity also decreases in June to 61%, down from May's 71%, creating a more comfortable atmosphere. For a detailed look at the weather, check out Skiathos weather in June.
May and July present distinct weather dynamics, with May showcasing milder temperatures and higher humidity compared to the warmer conditions of July. In May, temperatures range from a minimum of 13°C (56°F) to a maximum of 25°C (77°F), with an average of 18°C (65°F) and about 31 mm (1.2 in) of precipitation over 4 days. In contrast, July experiences significantly higher temperatures, starting at a minimum of 20°C (69°F) and peaking at 32°C (89°F), with an average temperature of 25°C (78°F). Although July sees an increase in total precipitation to 58 mm (2.3 in), it occurs over only 2 days, and the humidity drops to a more comfortable 57%. For more details about July weather, visit Skiathos weather in July.
In May, the weather is characterized by milder temperatures, with a minimum of 13°C (56°F) and an average of 18°C (65°F), peaking at 25°C (77°F). This month also sees a fair amount of humidity at 71% and a total precipitation of 31 mm (1.2 in) over about 4 days. In contrast, August offers much warmer conditions, with temperatures ranging from a minimum of 21°C (71°F) to an average of 26°C (79°F) and a maximum of 33°C (91°F). The humidity drops to 51%, and rainfall is less frequent, totaling 26 mm (1.0 in) over just 2 days. For those interested in exploring the weather specifics for August in a gorgeous Mediterranean location, you can check Skiathos weather in August.
In May, the weather typically features mild temperatures, with a minimum of 13°C (56°F) and a pleasant average of 18°C (65°F), peaking at around 25°C (77°F). With lower humidity at 71% and just 31 mm of precipitation over four days, May offers a comfortable climate for outdoor activities. In contrast, September warms up more, starting with a minimum of 17°C (63°F) and an average of 24°C (75°F), reaching highs of 29°C (84°F). However, it experiences increased rainfall, with 62 mm over the same four days, and lower humidity at 58%. For more information on the weather conditions in September, you can check Skiathos weather in September.
In comparing the weather of May and October, both months exhibit mild temperatures, with May averaging around 18°C (65°F) and October slightly warmer at 20°C (68°F). May sees a maximum temperature of 25°C (77°F), while October reaches up to 26°C (79°F). However, October is notably wetter, accumulating 83 mm (3.3 in) of precipitation over 8 days, compared to May's 31 mm (1.2 in) over just 4 days. Humidity levels remain similar, with May at 71% and October at 73%. For a more detailed look at October weather, you can visit Skiathos weather in October.
May and November present contrasting weather patterns, highlighting the transition from spring to fall. In May, temperatures range from a minimum of 13°C (56°F) to a pleasant average of 18°C (65°F), peaking at 25°C (77°F). With only 31 mm (1.2 in) of precipitation over approximately four days, May enjoys relatively lower humidity levels at 71%. In contrast, November sees cooler temperatures, with a minimum of 9°C (49°F) and an average of 16°C (62°F), reaching a maximum of 22°C (73°F). The month is marked by significantly increased rainfall, totaling 80 mm (3.1 in) over about 11 days and a higher humidity of 79%. For more about the weather specifics in November, you can check Skiathos weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a minimum of 13°C (56°F) to a pleasant average of 18°C (65°F), reaching a maximum of 25°C (77°F). The month experiences relatively low precipitation at 31 mm (1.2 in) over just 4 days and a humidity level of 71%. In contrast, December brings cooler temperatures, with a minimum of 7°C (45°F) and an average of 13°C (56°F), peaking at 19°C (67°F). This month sees significantly higher precipitation, totaling 117 mm (4.6 in) over 11 days, accompanied by increased humidity at 81%. For more details on weather conditions, you can refer to Skiathos weather in December.
As May arrives in Skiathos, the weather begins to transition towards the warmth of summer, offering a delightful blend of mild temperatures and scenic beauty. While the average temperature hovers around a comfortable 18°C (65°F), daily highs can reach up to 25°C (77°F), providing the perfect conditions for outdoor exploration. Unlike the cooler, wetter months preceding it, May boasts significantly less rainfall, with only about 31 mm over just four days, making it a fantastic time for visitors to indulge in the island's stunning beaches and vibrant landscapes. The humidity remains moderate at 71%, ensuring a pleasant atmosphere for all who venture out. For a deeper understanding of what to expect throughout the year, check out the detailed insights at Skiathos Climate.